CVE-2024-11616 Double-fetch heap overflow
A double-fetch heap overflow in the Netskope Endpoint DLP driver allows local attackers with admin privileges to execute arbitrary code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-11616?
CVE-2024-11616 is a medium-severity memory corruption vulnerability in Netskope Inc. Endpoint DLP, published on 19 Dec 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Netskope was made aware of a security vulnerability in Netskope Endpoint DLP’s Content Control Driver where a double-fetch issue leads to heap overflow. The vulnerability arises from the fact that the NumberOfBytes argument to ExAllocatePoolWithTag, and the Length argument for RtlCopyMemory, both independently dereference their value from the user supplied input buffer inside the EpdlpSetUsbAction function, known as a double-fetch. If this length value grows to a higher value in between these two calls, it will result in the RtlCopyMemory call copying user-supplied memory contents outside the range of the allocated buffer, resulting in a heap overflow. A malicious attacker will need admin privileges to exploit the issue. This issue affects Endpoint DLP version below R119.
Weakness: CWE-125
Which versions are affected by CVE-2024-11616?
How do I fix CVE-2024-11616?
No fix has been published for CVE-2024-11616 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-11616 being exploited?
There is no known exploitation of CVE-2024-11616 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-368q-3gfm-fh6f.